| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Danielsen, Hilmar Kjartansson
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (32/32 displayed)
- 2024Microstructural Evolution During Welding of High Si Solution-Strengthened Ferritic Ductile Cast Iron Using Different Filler Metalscitations
- 2023New White Etch Cracking resistant martensitic stainless steel for bearing applications by high temperature solution nitridingcitations
- 2023Understanding the challenges during repair welding of EN GJS-500-14 spheroidal cast iron for wind industry
- 2023Thermomechanical modeling and experimental study of a multi-layer cast iron repair welding for weld-induced crack predictioncitations
- 2022Effect of manufacturing defects on fatigue life of high strength steel bolts for wind turbinescitations
- 2021Residual strain-stress in manganese steel railway-crossing determined by synchrotron and laboratory X-raycitations
- 2021Microstructural characterization of white etching cracks in bearings after long-term operation in wind turbinescitations
- 2020Multi-axial Fatigue of Head-Hardened Pearlitic and Austenitic Manganese Railway Steels: A Comparative Studycitations
- 20192D and 3D characterization of rolling contact fatigue cracks in manganese steel wing rails from a crossingcitations
- 2019Crack formation within a Hadfield manganese steel crossing nosecitations
- 20182D and 3D characterization of rolling contact fatigue cracks in a manganese steel crossing wing rail
- 2017Synchrotron X-ray measurement of residual strain within the nose of a worn manganese steel railway crossingcitations
- 2017Multiscale characterization of White Etching Cracks (WEC) in a 100Cr6 bearing from a thrust bearing test rigcitations
- 2017Analysis of bearing steel exposed to rolling contact fatiguecitations
- 20163D characterization of rolling contact fatigue crack networkscitations
- 2016Review of Z phase precipitation in 9–12 wt-%Cr steelscitations
- 2014Grinding induced martensite on the surface of rails
- 2014A TEM Study on the Ti-Alloyed Grey Iron
- 2014Atomic Resolution Microscopy of Nitrides in Steel
- 2014New amorphous interface for precipitate nitrides in steelcitations
- 2013Investigation on Long-term Creep Rupture Properties and Microstructure Stability of Fe-Ni based Alloy Ni-23Cr-7W at 700°Ccitations
- 2013Kinetics of Z-Phase Precipitation in 9 to 12 pct Cr Steelscitations
- 2012Atomic resolution investigations of phase transformation from TaN to CrTaN in a steel matrix
- 2010Microstructural investigation of the oxide formed on TP 347H FG during long-term steam oxidationcitations
- 2010On the role of Nb in Z-phase formation in a 12% Cr steelcitations
- 2010On the role of Nb in Z-phase formation in a 12% Cr steelcitations
- 2010Conversion of MX nitrides to Z-phase in a martensitic 12% Cr steelcitations
- 2009On the nucleation and dissolution process of Z-phase Cr(V,Nb)N in martensitic 12%Cr steelscitations
- 2008A study on Z-phase nucleation in martensitic chromium steelscitations
- 2008Thermodynamic and kinetic modelling: creep resistant materialscitations
- 2007A thermodynamic model of the Z-phase Cr(V, Nb)Ncitations
- 2006Behaviour of Z phase in 9–12%Cr steels
Places of action
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article
Crack formation within a Hadfield manganese steel crossing nose
Abstract
Switches and crossings in rail networks suffer from complex loading which may induce severe damage and defects, including formation of cracks that can result in rail breakage. This paper focuses on the microstructure and crack network in a damaged Hadfield manganese steel crossing nose. The extent of deformation has been quantified by hardness measurements, optical microscopy and scanning electron microscopy (SEM) including electron back scattering diffraction (EBSD). It is found that the wheel contact causes high deformation hardness of over 600 HV, around three times that of the base material, and the strain hardening extends up to a depth of about 10 mm from the running surface. Microscopy indicates the deformation microstructure is composed of bands of both deformation twins and deformation induced dislocation boundaries. The complex crack network within the nose of the crossing has been investigated using 3D X-ray tomography, where both surface and subsurface cracks are detected with the majority of the cracks originating from the surface. The crack network has been related to the observed deformation microstructure and it has been found that although the hardening and the deformation of the Hadfield manganese steel is quite different from that of commonly used pearlitic rail steels, the crack morphologies are found to be quite similar for the two materials.